C++ Math floor
It rounds the value to the nearest integer which is not greater than the given value.
For example:
Example
floor(8.2)=8.0;
floor(-8.8)=-9.0;
Syntax
Suppose a number is 'x'. Syntax would be :
Example
double floor(double x);
Parameter
x : It is the value that rounds to the nearest integer.
Return value
It returns the value that round to the nearest integer not greater than x.
Example 1
Let's see a simple example by considering a positive value.
Example
#include <iostream>
#include<math.h>
using namespace std;
int main()
{
float x=7.8;
std::cout << "Initial value of x is : " << x<<std::endl;
cout<<"Now, the value of x is :"<<floor(x);
return 0;
}
Output:
Output
Initial value of x is : 7.8
Now, the value of x is :7
Example 2
Let's see a simple example by considering a negative value.
Example
#include <iostream>
#include<math.h>
using namespace std;
int main()
{
float x=-10.2;
std::cout << "Initial value of x is : " << x<<std::endl;
cout<<"Now, the value of x is :"<<floor(x);
return 0;
}
Output:
Output
Initial value of x is : -10.2
Now, the value of x is :-11